Take the 2-minute tour ×
Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

I have a Samsung syncmaster 2443NW monitor - currently I'm borrowing a LG Flatron w2246 (although this is in no way a long-term solution). I used the monitor's manual to check the monitor - apparently it is working fine and the problem is with my computer. However, my computer is working fine with a different monitor. Only a couple of days ago my monitor was working perfectly fine until I changed a couple of components in my computer.

I upgraded my Radeon HD 4850 to a Radeon HD 7850. Now when I use my Samsung monitor it appears to be in power save mode (the monitor light flashes suggest this). Following directions from the monitor manual, I can briefly take the monitor out of powersave a couple of time. Similarly when I log in to Windows 8 the screen displays for a few seconds. Even when it displays, though, the display is in a low resolution, off=centre, and very red. I have used the LG monitor to install the new GPU drivers and adjust the resolution.

If it helps I am using the DVI to VGA adaptor which came with the graphics card to connect the monitor in (it only has a VGA connection). Also, I have had this problem before, although it was sorted last time (can't remember how, but think it was by updating the graphics drivers).

As far as I am aware, everything is working perfectly - except that my normal monitor won't display properly with my PC.

share|improve this question
    
How is the Flatron connected to your computer? VGA as well? –  Oliver Salzburg Sep 30 '13 at 9:38
    
Yeah - exactly the same cables. Literally just unplugging one monitor, then plugging the other in. One works, one doesn't. –  user258550 Sep 30 '13 at 9:39
add comment

1 Answer 1

Change the resolution to take it down a bit; you likely have it set on the card to something that is beyond what the monitor can display safely.

share|improve this answer
add comment

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.